The oldest president ever elected to the U.S. presidency is Donald Trump, who was inaugurated for his second term at the age of 78 years and 7 months in January 2025. This made him the oldest person to be sworn in as president, surpassing Joe Biden, who was 78 years and 2 months old when he was first inaugurated in 2021
. Joe Biden holds the record for the oldest president at the time of his first inauguration, at 78 years and 61 days old, but Trump was slightly older at his second inauguration
. Prior to them, Ronald Reagan was the oldest president inaugurated at age 69 years and 348 days in 1981
. In summary:
- Oldest president elected (first term): Joe Biden at 78 years, 2 months
- Oldest president inaugurated (any term): Donald Trump at 78 years, 7 months (second term)
